Issue #1870528 by MegaChriz: Added tests for rules event feeds_import_IMPORTER_ID and the rules action feeds_skip_item. Also specified bundle for all feeds_import_IMPORTER_ID events (previously this attribute was only declared for the node processor).

Issue #1886230 by MegaChriz, generalredneck: fixed invoking rules events "feeds_before_import" and "feeds_after_import".